This master thesis describes the analysis and treatment of the painting Ung mann (A222), a painting in oil on canvas with the measurements 88, 5 x 74 cm. The painting is a half-length portrait and depicts a young man pouring vine from a jug into a ceramic bowl. The painting is not signed or dated, and both the artist and the dating is unknown.

The painting is owned by the Asker Museum-Valstad collections. Records from the museum database tells the painting was purchased in Spain by Otto Valstad, and that the painting has a connection to the students of Jusepe de Ribera.

Based on information provided by the museum, and the motif itself, it was attempted to find the provenience of the painting. It was also attempted to tie the painting to a cultural historical context and art technical period based on the given information, visual examination of painting techniques and identification of the materials used.

By use of various analysis, the condition of the painting before treatment was documented. The examination reveals damages and previous treatments on the painting. This documentation, together with information from the museum, was the basis for deciding what treatments to perform.

Examination of the painting was done through visual inspection, various types of photo analytical methods and by EDXRF-analysis. The interpretation of the results helped decide where to extract cross-sections of the paint layers, and what micro samples to examine using SEM-EDS. Micro samples was also extracted from the ground layer and from glue on the lining fabric for analysis in FTIR.

The most extensive part of the treatment was removal of lining and the remaining glue at the back of the canvas. This was done to stabilize the condition for the canvas. The large number of tears and holes in the canvas also made it necessary to reline the painting.